<?xml version='1.0' encoding='UTF-8'?><metadata xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns="http://dublincore.org/documents/dcmi-terms/"><dcterms:title>X-ray diffraction (XRD) patterns for distinct hydroxyapatite samples</dcterms:title><dcterms:identifier>https://doi.org/10.48788/DVUA/KFKQMN</dcterms:identifier><dcterms:creator>Yevhen Kuzenko</dcterms:creator><dcterms:creator>Skydanenko Maksym</dcterms:creator><dcterms:creator>Ponomarova Liudmyla</dcterms:creator><dcterms:creator>Roman Pshenychnyi</dcterms:creator><dcterms:publisher>DataverseUA</dcterms:publisher><dcterms:issued>2026-07-15</dcterms:issued><dcterms:modified>2026-07-15T11:23:23Z</dcterms:modified><dcterms:description>This dataset comprises X-ray diffraction (XRD) patterns for 8 distinct hydroxyapatite samples. The data was collected using an AXRD Benchtop diffractometer to determine phase purity, identify crystalline phases, and calculate lattice parameters for each sample.</dcterms:description><dcterms:subject>Chemistry</dcterms:subject><dcterms:subject>Medicine, Health and Life Sciences</dcterms:subject><dcterms:subject>X-ray Diffraction (XRD) analysis</dcterms:subject><dcterms:date>2026-07-15</dcterms:date><dcterms:contributor>Skydanenko Maksym</dcterms:contributor><dcterms:dateSubmitted>2026-07-11</dcterms:dateSubmitted><dcterms:type>Raw measurement data for each of the 8 samples individually - *.xye. The *.jpeg file provides a visual comparison overlaying the X-ray diffraction (XRD) patterns of all 8 investigated hydroxyapatite samples against a standard reference pattern (from the COD / ICDD database). This comparison clearly illustrates the phase purity, the presence or absence of secondary impurity phases, and variations in the crystallinity degree (indicated by peak intensity and broadening) relative to the ideal stoichiometric hydroxyapatite standard.</dcterms:type><dcterms:license>CC0 1.0</dcterms:license></metadata>